baber/WOPTO huggingface dataset:
Patent GB-1007688-A (GB)
Title: Process for casting films
Inventor: BERGER KARL HEINZ
IPC: B29C41/24
Filed: 1963-10-02
Abstract: 1,007,688. Casting bases. FILMFABRIK WOLFEN VEB. Oct. 2, 1963, No. 38860/63. Heading B5B. A casting base consisting of a layer of superficially hydrolysed cellulose ester is removed from its support, e.g. a drum or endless belt, by treating the base with a liquid organic acid amide, capable of completely softening the casting base, and pulling off the softened layer. A new casting base may then be formed on the support. The cellulose ester may be cellulose acetate. The acid amide may be formamide or an N-monosubstituted or N-disubstituted aliphatic acid amide such as dimethylformamide, dimethylacetamide or N - methylformanilide. The acid amide softening liquid may contain a polymer soluble therein, e.g. cellulose acetate, polyvinyl acetate or polyacrylonitrile. In examples, casting bases made by depositing layers of cellulose acetate on supports and hydrolysing the surface with potassium hydroxide are stripped from the supports after treatment with dimethylformamide or solutions of the above-mentioned polymers in the above-mentioned acid amides at 25‹ C.
Patent GB-1092106-A (GB)
Title: Foamable compositions
Inventor: BERNIER GEORGES EMILE
IPC: C08G8/30
Filed: 1963-10-03
Abstract: Foamable compositions comprise (1) at least one polymerizable ether of the formuae <FORM:1092106/C3/1> <FORM:1092106/C3/2> <FORM:1092106/C3/3> wherein n is an integer having a value of at least 2, R1, R2 and R6 are hydrogen or alkyl radicals, R3 is hydrogen, a halogen atom or an hydrocarbyl radical.  R4 and R5 taken together are two hydrogen atoms, two alkyl radicals or an alkylene or substituted alkylene radical forming a cyclic structure with the group <FORM:1092106/C3/4> and A is a linking group having a valency equal to n; (2) at least one phenolic compound compatible therewith, the weight ratio of polymerizable ether to phenolic compound being from 20:3 to 20:7; (3) a foaming agent; and (4) an acidic catalyst consisting of a mixture of from 3% to 50% by weight of fluosilicic acid or a soluble salt thereof and from 97-50% by weight of perchloric or fluoboric acid or a soluble salt thereof.  Preferred ethers are those disclosed in Specification 991,970.  Foaming agents specified are trichloromonofluoromethane, 1,2 - dichlorotetrafluoroethane, 1,2 - trichlorotrifluoroethane, dibromodifluoromethane, 1,2 - dichlorohexafluorocyclobutane, methylene chloride, chloroform, trichloroethylene, carbon tetrachloride and perchloroethylene.  The catalysts may be copper fluosilicate or antimony fluoborate.  Flame retardants such as trichloroethylphosphate 2:2 - bis - (31,51 - dibromo - 4-hydroxyphenyl) propane and polyvinyl chloride with or without antimony oxide and surfactants such as siloxane oxyalkylene copolymers may also be added.
Patent GB-1438394-A (GB)
Title: Knife block for a tufting machine
IPC: D05C15/24
Filed: 1973-08-17
Abstract: 1438394 Tufting machine SINGER CO 17 Aug 1973 38986/73 Heading D1G A tufting machine knife block 20 capable of accommodating a rectangular section knife 18, 18' provides a cavity having sloping side walls 46, 48 between which the knife is clamped. The block is secured to its rockshaft (22, Fig. 1 not shown) by lug 32. For Figure see next column
Patent GB-863688-A (GB)
Title: Catalytic isomerization
IPC: B01J21/02
Filed: 1959-11-18
Abstract: The isomerisation of C4-C9 paraffins is effected at 500-800 DEG F. and superatmospheric pressure in the vapour phase in the presence of free hydrogen, 1-25% by weight based on feed of a hydrogen halide (of which the halogen has an atomic weight between 35 and 85) and a catalyst containing 0,01-2% of a platinum group metal and 3-20 DEG of boria supported on alumina. Aromatic and naphthalenic hydrocarbons may be present.  The pressure may be 200-1000 p.s.i.g, the space velocity 0,25-8 wt./wt./hr. and the hydrogen to hydrocarbon mol ratio 0,01-20:1.  The hydrogen halide may be added as a hydrogen halide precursor and may be added at least partly by hydrogen halide present in the recycle gas.
Patent GB-1162712-A (GB)
Title: A Detector Tube for Indicating the Presence of Alcohol in Exhaled Air
Inventor: NAGY JANOS
IPC: G01N33/98
Filed: 1966-09-01
Abstract: 1,162,712. Gas analysis. MEDICOR MUVEV. Sept. 1, 1966, No. 39173/66. Heading G1B. A device for indicating the presence of alcohol in exhaled air comprises an outer tube 1, an inner tube 2 defining a space 8 between the tubes and a reagent solution 7 of acidified ammonium bichromate absorbed or a filling 9 of granules or fibres and disposed in the space 8, the presence or absence of alcohol in the exhaled air blown down the inner tube 2 being determined by colour change of the originally orange-coloured reagent, wherein the appearance of a brownish colour indicates the presence of small quantities of alcohol, a greenishyellow colour means a fairly large alcohol content and a greenish-blue colour indicates a high alcohol content. Preferably the solution contains between 0À3 to 5% by weight of ammonium bichromate, and the solution is acidified using sulphuric acid. The filling 9 is preferably formed by irregularly shaped glass beads.
Patent GB-1360694-A (GB)
Title: Sprayer
IPC: B05B9/043
Filed: 1972-08-23
Abstract: 1360694 Spray nozzles T TADA 23 Aug 1972 [26 Aug 1971 25 March 1972] 39207/72 Heading B2F [Also in Division F1] The spray nozzle of a hand-actuated, pumptype sprayer (see Division Fl) is mounted on the pump piston 16, 17 and comprises a swirlproducing valve member 22 which, in the discharge stroke position shown, defines a swirl chamber 25 communicating with an outlet orifice 18 and with the pumping chamber via grooves 26, passages 24 defined by the polygonal shape of the member, and the piston interior, the member 22 moving back to contact abutment 21 on the suction stroke to cut-off communication between the pumping chamber and orifice 18.
Patent GB-1138261-A (GB)
Title: Process for chemically modifying polymers
IPC: C08L23/02
Filed: 1967-08-25
Abstract: 1,138,261. Segmented polymer. ASAHI KASEI K.K. 25 Aug., 1967 [27 Aug., 1966], No. 39291/67. Heading C3P. A segmented polymer is obtained by heating a mixture of a monoolefin (including styrene) polymer with a different synthetic rubber or thermoplastic polymer in the presence of a catalyst comprising a tetravelent organotin compound. The reaction may suitably be carried out in a screw extruder-type pelletizing device. Exemplified monoolefin polymers are polypropylene and polyethylene, exemplified other polymers are methyl methacrylate/ methyl acrylate copolymer, ethylene/vinyl acetate copolymer, ethylene/propylene copolymer, polybutadiene, poly-octa-methylene-4- amino-1,2,4-triazole, and an ethylene/ethylacrylate copolymer, while exemplified tin compounds are di-t-butyl tin oxide, dibenzyl tin oxide, and di-n-butyl tin dimethoxide.
Patent GB-1203654-A (GB)
Title: Bundle of bags and method and apparatus for forming same
IPC: B65B25/14
Filed: 1967-08-29
Abstract: 1,203,654. Stacking and bundling bags. UNION CARBIDE CORP. 29 Aug., 1967 [29 Aug., 1966], No. 39513/67. Headings B8C and B8R. Collapsed bags, particularly square-ended plastics bags, are stacked and formed into a bundle with a W-shaped cross-section, either manually or automatically. Manual method.-Straps 32, 34 are laid across the bottom of a box 40, Fig. 2, beneath a movable V-shaped former 42. Bags are then placed over the former so that the ends of each bag abut the sidewalls 52, 54 of the box. Next, the former 42 is slid from the end 48 of the box, and the pile of bags 13 pressed down by a flat platen which causes the bags to slide over each other until the W-shaped configuration shown in Fig. 1 is reached. Straps 32, 34 are finally secured around the bundle. Automatic method.-Individual bags 50, Fig. 4, are added to a stack 51 from below by suction grippers 74. The stack is supported by fork tines 62 which are withdrawn laterally each time a bag is added. The stack is shaped by a slotted former 64, and when complete is supported by trap-doors 70 before being pushed through a shaping tunnel which has an entrance port approximately in the shape of the stack 51 in its initial state. The cross-section of the tunnel changes gradually to the shape shown in Fig. 8 so that the stack emerges as a W-shaped bundle ready for strapping.
Patent GB-1377056-A (GB)
Title: Polymer oils
IPC: H01B3/22
Filed: 1973-08-14
Abstract: 1377056 Liquid polypentadiene and hydrogenation product thereof NIPPON ZEON CO Ltd 14 Aug 1973 [16 Aug 1972] 39517/73 Heading C3P [Also in Division C5]  An oil is obtained by polymerizing 1,3-pentadiene containing up to 20 % of a co-polymerizable olefin at - 30 to + 100‹ C. in the presence of a homogenizable Friedel-Crafts catalyst to give a polymer having a number average M.wt. of 300-1000, an iodine number of less than 250 and with at least 70% of the pentadiene in the  trans configuration, and then hydrogenating the liquid polymer to decrease the iodine number to not more than 60. In examples, 1,3-pentadiene is polymerized in solution in n-pentane or n-pentane/benzene in the presence of boron trifluoride diethyl etherate, and the product hydrogenated in the presence of nickel.
Patent GB-1418568-A (GB)
Title: Wheel trim and retention clips
IPC: B60B7/06
Filed: 1973-08-15
Abstract: 1418568 Vehicle wheels J CONNELL 15 Aug 1973 [2 Oct 1972] 39541/73 Heading B7C [Also in Division E2] A wheel trim in the form of a cover 10 for application to the outboard face of a vehicle wheel 40 has a flange 12 for lying radially inwardly of a flange 42 of the wheel and is provided with recesses 14 receiving retention clips 26, each retention clip comprising a pair of fingers 30, a wheel-flange engaging portion 28, supporting protuberances 32, a pair of fingers 38 for resiliently supporting the fingers 30, and a tab 36 for engagement in an opening 22 of the cover. The clip may be of plastics material. In the embodiment of Fig. 4 (not shown), the wheel-flange engaging portion (28) is provided with two metal pins (46) for engagement with the wheel flange; in the embodiment of Fig. 5 (not shown), the portion (28) is provided with a metal cap (50) having barbs (52) adapted to embed in the wheel flange.
Patent GB-855013-A (GB)
Title: Improvements in or relating to glucose detection
Inventor: FREE HELEN MURRAY
IPC: C12Q1/54
Filed: 1956-12-31
Abstract: A composition for detecting glucose in urine, comprising glucose oxidase, peroxidase and a compound which undergoes a colour reaction in the presence of hydrogen peroxide and peroxidase, in which a soluble proteinaceous material is included to stabilize the composition.  The proteinaceous material may be plasma, casein, pectin, glue, serum, albumin or gelatin and the composition may be used on a carrier in strip or stick form by means of an adhesive which does not contain glucose.  Additionally the proteinaceous material may be used as the adhesive. Specification 808,742 is referred to.
Patent GB-1171232-A (GB)
Title: Coloured Crystalline Polypropylene Fibres
IPC: C08L23/12
Filed: 1967-08-30
Abstract: 1,171,232. Polypropylene filaments. ASAHI KASEI KOGYO K.K. 30 Aug., 1967 [6 Sept., 1966; 28 Feb., 1967], No. 39715/67. Heading B5B. [Also in Division C3] Polypropylene fibres are obtained by meltspinning a composition comprising crystalline polypropylene, 5-20% by weight liquid paraffin, based on the weight of the composition, and a pigment. Liquid paraffin is defined as a petroleum fraction boiling in the range 330- 390‹ C. and which is a colourless oily liquid at normal temperature, produced by highly refining a lubricating oil. A heat stabilizer for the polypropylene may also be present. Specified pigments include titanium dioxide, and organic dyestuffs (e.g. CI pigment red, CI pigment yellow, and CI pigment blue). Dispersing agents for the pigment may be present, and fluorescent brighteners. Preferably, the weight of pigment is 3% or less based on the weight of the composition. In examples, melt-spinning is effected at a spinning temperature in the range 190‹ to 260‹ C. and at a spinning speed of 800 metres per minute, and the resulting fibres stretched to 4 times their original length.
Patent GB-1473223-A (GB)
Title: Circuit board blanks
IPC: H05K3/38
Filed: 1975-09-04
Abstract: 1473223 Electroless Ni-P plating WELWYN ELECTRIC Ltd 4 Sept 1975 [12 Sept 1974] 39793/74 Heading C7F An insulating substrate, e.g. an epoxy-glass laminate is coated with Ni-P by electroless plating, electrically stabilized by heating at e.g. 180‹C for 16 hours, and then coated with Cu e.g. by electroplating. The electroless bath may be, g./l., nickel sulphate 29À1, sodium hypophospite 17À5, sodium succinate 1À65, succinic acid 7À05.
Patent GB-1456390-A (GB)
Title: Lamp assembly
IPC: F21V19/00
Filed: 1973-08-23
Abstract: 1456390 Vehicle lamps LUCAS ELECTRICAL Ltd 16 May 1974 [23 Aug 1973] 39914/73 Heading F4R  A lamp assembly, e.g. for a motor vehicle, comprises a dished housing 1 in which is a bulbholder 2 having a shoulder 8 against which, in use, a lamp filament assembly 12 engages, a closure member 7 which engages the housing 1 to close the aperture 6 in the housing through which the filament assembly 12 is introduced and a spring 14, disposed between the closure member 7 and the shoulder 8 and engaging the closure member to oppose the disengagement thereof from the housing and also to urge the filament assembly 12 into engagement with the shoulder 8 the spring 14 having at least one tag 25 or 26, Fig. 5, which engages a part of the bulbholder to provide an abutment for its spring action. Preferably the bulbholder 2 is integrally formed with the metal housing 1 and the closure member 7 is secured to the bulbholder 2 by a bayonet connection which is sealed by a resilient ring 28. The spring 14, also Fig. 6 (not shown), has a central curved section 21 to urge the filament assembly 12 against shoulder 8 with two tags 25, 26 forming a continuation thereof providing abutments for the spring against the bulbholder wall 10 and a central aperture (22) for locating the filament assembly. Flanges 23, 24 project from the central section of the spring and are located between the housing shoulder 11 and the closure member 7 to maintain the bayonet connection.
Patent GB-917084-A (GB)
Title: Chocolate drink base and method of production thereof
IPC: A23G1/56
Filed: 1960-11-23
Abstract: Short, preferably cylindrical, extruded bodies of sugar carrying cocoa powder dispersed therein or thereon are used on cereals or as cake or ice cream topping or as a base for a chocolate flavoured hot or cold milk drink.  The cocoa powder used is preferably de-fatted by hexane extraction and dyed, is ground and, if it is to be added to the sugar prior to extrusion, has its moisture content raised to 10%. It is added to granulated sugar which has been mixed with vitamins and flavourings in a ribbon blender and whose moisture content has then been raised to 3% by water sprayed into the blender.  The prepared cocoa powder is added either before extrusion in a batch mixer, or after extrusion by feeding the extruded sugar, which breaks or is broken up into short lengths, on to the powder as it passes along a jigging conveyer.  After addition, the product is dried and packed. Extrusion is through a plate with multiple perforations.  If the cocoa powder is not de-fatted a wetting agent is added to the product.
Patent GB-1442298-A (GB)
Title: Replenishment of fluidised beds
IPC: B01J8/00
Filed: 1972-09-01
Abstract: 1442298 Replenishing fluidised beds IMPERIAL CHEMICAL INDUSTRIES Ltd 13 Aug 1973 [1 Sept 1972] 40673/72 Heading B8A [Also in Division B1] A fluidised bed is maintained at a desired level 8 by means of a hopper 5, the outlet of which is situated above an air impervious baffle 7, the baffle and the outlet being dimensioned and positioned such that, a heap of unfluidised material forms on the baffle to prevent further discharge of the hopper when the bed is at the desired level 8, but material flows from the hopper when the bed is below the desired level 8. The hopper and baffle may be combined into a detachable unit.
Patent GB-407494-A (GB)
Abstract: 407,494. Door-operating apparatus; fastenings. NEWMAN & SONS, Ltd., W., and SHEAD, H. C., 268, Hospital Street, Birmingham. Jan. 4, 1933, No. 237. [Classes 44 and 65 (i).] In a system for opening doors by cables, the motive force is supplied by a weight which, when released by operation of a detent, falls and engages an abutment on a vertical rod or member suspended from the operating cable ; a sudden impulse is thus given to the operating cable. The system may unbolt the doors before opening them. The cable is arranged so that the speed of movement of the doors is reduced on approaching the open position. The arrangement shown is applied to a pair of sliding folding doors 1, each comprising a leaf hinged to the door post at 3 and a second leaf hinged to the free edge of the first at 2 and supported at its free end by a roller 4 running on a track 5. Upper and lower bolts 6, 7 on the doors are connected to operate together, and the upper bolts 6 are operated by levers 8, Fig. 3, to each of which is fixed one end of an operating cable 10. From the levers 8 the cable passes over pulleys 14 mounted on swivel arms 15 on the doors and thence over fixed guide pulleys 16, 19 and 16, 18, 20 respectively to form a loop 21 from which a rod 22 is supported by a pulley 23. At the lower end of the rod 22 is an abutment 26, and a weight 25 is normally supported a short distance above the abutment by a detent, which may be of the kind described in Specification 407,493 ; the cable is maintained taut by the weight of the rod 22, with an auxiliary weight or a spring if necessary. When the detent is released, the weight 25 falls freely, gathering momentum, until it strikes the abutment 26 on the rod 22, giving an impulse to the cable svstem which withdraws the bolts 6, 7 on the doors. The weight continues to fall, and the doors are opened by the pull on the cable, the leverage of the cables on the door being reduced as the doors open, owing to the angularity of the pull on the doors, so that the speed of movement of the doors is diminished. A cable 31, passing over a pulley 32 and attached to the weight 25, is provided for raising the weight into its normal position in engagement with the detent to allow the doors to be closed and fastened by hand. The clearance between the weight 25 and abutment 26 may be adjusted, in order to vary the initial impulse given to the system, by altering the positions on the cable 10 at which the levers 8 are clamped to it. The means for clamping the cable 10 to the lever 8 comprises a sleeve 11, Fig. 4, placed between the limbs of a forked end of lever 8, and a bolt 12 passing through the sleeve, the sleeve and bolt having transverse holes through which the cable passes, clamping being effected by axial adjustment of the bolt.
Patent GB-902355-A (GB)
Title: Continuous esterification process
Inventor: MACLEAN ROBERT NORMAN
IPC: B21D5/14
Filed: 1958-12-17
Abstract: Esters are prepared by a continuous process comprising passing a mixture of a carboxylic reactant and an alcohol into a first series of zones, one reactant being in stoichiometric excess over the other, heating the mixture in this series of zones in the presence of a stream of inert permanent gas or normally gaseous hydrocarbon to produce an ester, the reactant in excess being more volatile than the ester produced, removing the water of esterification from the said series of zones by entrainment in the permanent gas or gaseous hydrocarbon, passing the esterification product consisting of the ester and unreacted reactant to a second series of heated zones through which is passed a stream of a permanent gas or gaseous hydrocarbon, recovered and freed from entrained material after passage through the first series of zones, to remove by entrainment the reactant present in the esterification product, returning all or part of the mixture of the reactant and permanent gas or gaseous hydrocarbon to the first series of zones and recovering the reactant-free ester from the second series of zones.  The carboxylic reactant is an acid such as stearic, maleic, adipic, isosebacic, sebacic, phthalic, isophthalic or terephthalic acid; an anhydride such as maleic or phthalic anhydride; or a partially esterified di- or polycarboxylic acid.  The alcohols may be mono-, di- or poly-hydric and are preferably not more volatile than n-butanol and include amyl, hexyl and decyl alcohols and cyclohexanol.  The first series of zones are generally maintained at 105 DEG -250 DEG C., while the second series are maintained at a lower temperature. Both series may be in the form of bubble-cap towers with independent heating for each section.  The gaseous entrainer may be nitrogen, hydrogen, carbon dioxide, air or butane.  Unchanged reactant entrained in the gas leaving the first series of zones is recovered and recycled.  Esterification is preferably effected in the presence of sulphuric acid or toluene sulphonic acid as catalyst.  A suitable form of apparatus is described and is used in esterifying phthalic anhydride with an excess of n-octanol. According to the Provisional Specification, there may be used as the carboxylic reactant, an ester of a carboxylic acid with an alcohol more volatile than the alcohol to be esterified. Specifications 660,021 and 732,784 are referred to.
Patent GB-975397-A (GB)
Title: Improvements relating to the production of photographs capable of exhibiting a relief effect when projected
IPC: G03B35/00
Filed: 1959-12-01
Abstract: 975, 397. Stereoscopic cameras. E. H. WRIGHT. Dec. 1, 1960 [Dec. 1, 1959], No. 40764/59. Heading G2A. A method of producing photographs capable of exhibiting a relief effect when projected comprises forming a reduced virtual image of the object, photographing the virtual image with a normal photo-lens, the diameter of which is thus effectively increased, and interposing a slotted mask in front of the normal lens or inside the lens barrel. As shown, the optical system may comprise a plano-concave lens 1, a convex lens 2, a concavo-convex lens 3, and a convex lens 4, the mask 7 having intersecting horizontal and vertical slots, being located immediately in front of a camera lens 5. Specification 840,109 is referred to.
Patent GB-1388493-A (GB)
Title: Fasteners for loose leaf binders
IPC: B42F13/04
Filed: 1972-09-04
Abstract: 1388493 Loose-leaf binder C J BROADHURST 4 Sept 1972 40844/72 Heading B6E A loose-leaf binder is provided with a fastener for a lace 2 passed through perforations in loose-leaves, the fastener including an eyelet or tubular rivet 4 attached to a base member 1, e.g. a folder flap and, clamping thereto a spiral 5 whose convolution 7 unwinds progressively from the head of the rivet 4 to provide on the one hand a lace clamping action when the lace co-operates with the rivet head and convoluttion 7 and, on the other hand a lace tension releasing action when the lace 2 is moved into a recess 10 formed between the base member 1 and an arched portion 9 of the convolution 7.
Patent GB-1063278-A (GB)
Title: Manufacture of polyurethane elastomers
IPC: C08G18/10
Filed: 1965-09-24
Abstract: A polyurethane comprises the reaction product of an organic diisocyanate and a copolyether polyol of ethylene oxide and 1,2-2,3- or iso-butylene oxide, said polyol having an equivalent weight of at least 3400 and containing 10-50% by weight of ethylene oxide. A diamine curing agent may also be used, e.g. dichlorobenzidine, 4,41-methylene-bis-(2-chloroaniline) or 2-methylpiperazine.  An additional hydroxyl containing component, e.g. trimethylolpropane, polytetramethylene glycol or oxypropylated trimethylol propane may also be included.ALSO:Glass, metals and paper are coated with a polyurethane solution obtained by reacting tolylene diisocyanate with a copolyether of ethylene oxide and 1, 2 butylene oxide and ethylene glycol and reacting the prepolymer obtained with 2 methylpiperazine in dimethylformamide.